JERSEY CITY, N.J. (CBSNewYork) — City Hall in Jersey City was evacuated Monday, after a letter to Mayor Steven Fulop containing white powder and a picture of Tim Tebow was discovered, according to a published report.

The letter was addressed to “Steven Fulop, family and friends,” and white powder fell out when a mayoral aide opened it at 2:15 p.m., Jersey City Public Safety Director James Shea told the Jersey Journal.

There was also a letter inside, which sources told the newspaper contained “spiritual stuff; heaven stuff,” along with the picture of the former Jets quarterback. But the exact contents of the letter were not revealed to the newspaper pending investigation.

Tebow has thrown 17 touchdowns and nine interceptions in three NFL seasons as a member of the Denver Broncos and the Jets, but he was cut after one tumultuous season with the Jets and is not currently on any NFL team. He is known for his deep religious convictions.

Police, fire crews, the city bomb squad, the hazardous materials unit, and ambulances were dispatched to the scene, the newspaper reported. Those in the room where the letter was opened were sequestered, and everyone else in at City Hall was evacuated, the paper reported.

It turned out that the powder was harmless, but police continued to investigate and believe that the letter was deliberately made to look suspicious, the newspaper reported. The return address on the letter turned out to be fake, the paper reported.

Fulop was not at City Hall when the letter was opened, the paper reported.